Chapter 1. What is QoS?

  1. Mario Marchese

Published Online: 16 APR 2007

DOI: 10.1002/9780470058763.ch1

QoS Over Heterogeneous Networks

QoS Over Heterogeneous Networks

How to Cite

Marchese, M. (2007) What is QoS?, in QoS Over Heterogeneous Networks, John Wiley & Sons, Ltd, Chichester, UK. doi: 10.1002/9780470058763.ch1

Author Information

  1. Department of Communications, Computer and System Science, University of Genoa, Italy

Publication History

  1. Published Online: 16 APR 2007
  2. Published Print: 20 APR 2007

ISBN Information

Print ISBN: 9780470017524

Online ISBN: 9780470058763



  • QoS over heterogeneous networks;
  • Quality of Service (QoS);
  • Mean Opinion Score (MOS) methods;
  • Objective Metrics - video and audio packet loss;
  • Subjective Metric MOS;
  • Full-Control and Light-Control;
  • Service Level Specification (SLS);
  • Asynchronous Transfer Mode (ATM);
  • Multi-Level Precedence and Pre-emption (MLPP)


This chapter contains sections titled:

  • QoS Definition

  • Applications

  • QoS Metrics

  • The Concept of Traffic Flow and Traffic Class